南方科技大学知识苑(SUSTech KC): Benzonitrile-functionalized non-fullerene acceptors for organic solar cells with low non-radiative loss

题名	Benzonitrile-functionalized non-fullerene acceptors for organic solar cells with low non-radiative loss
作者	Sun，Cheng Zhe1 ; Lai，Xue 2; Rehman，Tahir2 ; Lai，Hanjian 2 ; Ke，Chunxian2 ; Shen，Xiangyu2 ; Zhu，Yulin2 ; Tian，Leilei1 ; He，Feng2
通讯作者	Tian，Leilei; He，Feng
发表日期	2022
DOI	10.1039/d2tc03701g
发表期刊	Journal of Materials Chemistry C 影响因子和分区
EISSN	2050-7534
摘要	The photovoltaic performance of organic solar cells (OSC) has been compromised by the large energy losses. Non-radiative recombination energy losses (ΔE) are the major factor in the energy loss but can be modulated by rational molecular design. Herein, three new non-fullerene acceptors (NFAs), BTIC-4CN, BTIC-γ-2CN, and BTIC-γ-4CN were synthesized by the substitution of benzonitrile or benzodinitrile groups on the end groups. The photovoltaic performances were investigated by blending each acceptor with the complementary D18 donor polymer. Among them, BTIC-γ-2CN based devices exhibited the best PCE of 16.03% with a low non-radiative recombination energy loss of 0.191 eV. Ternary devices with NFAs of BTIC-γ-2CN and Y6 achieve an impressive high PCE of 17.61%. This good photovoltaic performance is attributed to the improved light absorption ability, optimized film morphology, and reduced non-radiative recombination loss. This work reveals the significance of substituting aryl nitrile groups on the end groups to simultaneously improve the photovoltaic performance with low non-radiative recombination losses.
相关链接	[Scopus记录]
收录类别	SCI
语种	英语
学校署名	第一 ; 通讯
WOS记录号	WOS:000882117500001
Scopus记录号	2-s2.0-85142457118
来源库	Scopus
引用统计	被引频次[WOS]：6
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/415756
专题	工学院_材料科学与工程系理学院_化学系深圳格拉布斯研究院
作者单位	1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China 2.Shenzhen Grubbs Institute,Guangdong Provincial Key Laboratory of Catalysis,Department of Chemistry,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
第一作者单位	材料科学与工程系
通讯作者单位	材料科学与工程系; 化学系; 深圳格拉布斯研究院
第一作者的第一单位	材料科学与工程系
推荐引用方式 GB/T 7714	Sun，Cheng Zhe,Lai，Xue,Rehman，Tahir,et al. Benzonitrile-functionalized non-fullerene acceptors for organic solar cells with low non-radiative loss[J]. Journal of Materials Chemistry C,2022.
APA	Sun，Cheng Zhe.,Lai，Xue.,Rehman，Tahir.,Lai，Hanjian.,Ke，Chunxian.,...&He，Feng.(2022).Benzonitrile-functionalized non-fullerene acceptors for organic solar cells with low non-radiative loss.Journal of Materials Chemistry C.
MLA	Sun，Cheng Zhe,et al."Benzonitrile-functionalized non-fullerene acceptors for organic solar cells with low non-radiative loss".Journal of Materials Chemistry C (2022).